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Weetabix

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About Weetabix

  • Rank
    New Member

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  • Location
    SW MO
  • Interests
    Tinkering
  1. Hamfisted may be too kind! ;-) I bought a bunch of cheapies on ebay so I could learn by mistake on inexpensive experimental test subjects before I move on to anything that matters. I'll try to remember to take a picture tonight. The bezel comes off the front of this case (whatever it's case number should be). So, I guess you'd call it a 3-piece case? I've done crystal swaps on an SKX, and this one is different for sure.
  2. Where do you find the case information?
  3. Well... I put it on the press. Cracked the crystal, which is OK since I'm replacing it, but a bit embarrassing. The bezel came off with it. The bezel has small indents to pry it off. I guess I'll look more closely next time. The crystal measures 31x1.8, so I'll try a generic. The gasket WAS ok except I tried to slip an Xacto in there in case it was glued. The threads on the back of the case measure 29.6 mm, so I'll try the generic 29.8 x 0.5? Where do they measure the diameter on a gasket? Centerline? OD? ID?
  4. I just serviced the 7009 movement from a 7009-3170. I haven't put it on the timegrapher yet, but it's keeping decent time from last night. The crystal is trashed, and the case gasket fell apart. Stem gasket looks iffy. I've tried searching, but I can't seem to find any information on this particular case. I've found a bunch of pdf's that claim to relate to Seiko cases, but somehow, I'm just not finding what I think I need. So, I have questions: 1. Does anyone know how this crystal comes out? I'm hesitant to just put it on a press and push, though that might answer it. 2. D
  5. "Actually as the power reserve gets low the principal impact on the balance is on amplitude which drops considerably. Counterintuitively this can actually result in an increase in rate and the watch can speed up as the power reserve gets very low, although I've never quite worked out the mechanism behind this effect, but I have observed it." Perhaps with a lower amplitude there's not a proportional reduction in angular velocity of the balance? Lower amplitude at same angular velocity would give a higher rate?
  6. You bet! The cold just arrived along with the darkness, so inside pursuits sound good. And the cash drain has already started. I'll be looking into the course.
  7. I've always enjoyed watches and clocks. I've always enjoyed fixing things. Except electronics - I can never figure out how to get the magic smoke to go back in. I bought a couple of dead pocket watches to disassemble and reassemble. That worked. I've modded a few watches, and that went acceptably well. I've regulated a few watches, and that went well. Now it seems like time to start getting deeper. Right now, I'm trying to accumulate old Seiko movements to experiment with since there seem to be a lot of them and lots of information around. I plan to lurk more than post or ask
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